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| author | Alexey Khoroshilov <khoroshilov@ispras.ru> | 2016-02-27 01:33:14 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@kernel.org> | 2016-03-04 16:14:47 +0300 |
| commit | cff5638ef7852196879f9687e70d49ea291bbb33 (patch) | |
| tree | c5f7866cbd378848b28157ff007e37972f89db7f /Kconfig | |
| parent | ead22caf8507c0533aab6b89e26776414b477b6f (diff) | |
| download | linux-cff5638ef7852196879f9687e70d49ea291bbb33.tar.xz | |
usb: gadget: bdc_udc: fix race condition in bdc_udc_exit()
bdc_ep_disable() expects to be called with bdc->lock held.
The assumption is met in all the cases except for call from bdc_udc_exit(),
that is called from bdc_remove(). As a result a race can happen or unheld
bdc->lock can be unlocked in bdc_req_complete().
The patch proposes to acquire-release bdc->lock around bdc_ep_disable()
in bdc_udc_exit().
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Diffstat (limited to 'Kconfig')
0 files changed, 0 insertions, 0 deletions